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Showing 1 to 12 of 139 entries
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Propagation equation for tight-focusing by a parabolic mirror.

Optics express

Couairon A, Kosareva OG, Panov NA, Shipilo DE, Andreeva VA, Jukna V, Nesa F.
PMID: 26698752
Opt Express. 2015 Nov 30;23(24):31240-52. doi: 10.1364/OE.23.031240.

Part of the chain in petawatt laser systems may involve extreme focusing conditions for which nonparaxial and vectorial effects have high impact on the propagation of radiation. We investigate the possibility of using propagation equations to simulate numerically the...

Youth-Targeted E-cigarette Marketing in the US.

Tobacco regulatory science

Padon AA, Maloney EK, Cappella JN.
PMID: 28083545
Tob Regul Sci. 2017 Jan;3(1):95-101. doi: 10.18001/TRS.3.1.9.

OBJECTIVES: The purpose of this project was to explore the extent to which e-cigarette advertisements use youth-appealing content.METHODS: A sample of e-cigarette video ads (N = 154) were coded by 3 independent coders using the content appealing to youth...

A Collection of Topological Types of Nanoclusters and Its Application to Icosahedron-Based Intermetallics.

Inorganic chemistry

Pankova AA, Akhmetshina TG, Blatov VA, Proserpio DM.
PMID: 26067382
Inorg Chem. 2015 Jul 06;54(13):6616-30. doi: 10.1021/acs.inorgchem.5b00960. Epub 2015 Jun 11.

In this study, we carried out a topological and geometrical analysis of more than 27 000 intermetallics. More than 2000 topologically different nanoclusters were determined and stored in an electronic database as the Topological Types of Nanoclusters (TTN) collection....

Ultrabroad Terahertz Spectrum Generation from an Air-Based Filament Plasma.

Physical review letters

Andreeva VA, Kosareva OG, Panov NA, Shipilo DE, Solyankin PM, Esaulkov MN, González de Alaiza Martínez P, Shkurinov AP, Makarov VA, Bergé L, Chin SL.
PMID: 26918992
Phys Rev Lett. 2016 Feb 12;116(6):063902. doi: 10.1103/PhysRevLett.116.063902. Epub 2016 Feb 11.

We have solved the long-standing problem of the mechanism of terahertz (THz) generation by a two-color filament in air and found that both neutrals and plasma contribute to the radiation. We reveal that the contribution from neutrals by four-wave...

Commentary Re: "The Onset of Intra-Abdominal Adhesions During Closed-Abdomen Hyperthermic Intraperitoneal Chemotherapy" (J Laparoendosc Adv Surg Tech A 2016;26:997-1002).

Journal of laparoendoscopic & advanced surgical techniques. Part A

Mynbaev OA, Ivanov AA, Benhidjeb T, Stark M.
PMID: 28253052
J Laparoendosc Adv Surg Tech A. 2017 Apr;27(4):423-424. doi: 10.1089/lap.2017.0011. Epub 2017 Mar 02.

No abstract available.

Cross-correlation frequency-resolved optical gating coherent anti-Stokes Raman scattering with frequency-converting photonic-crystal fibers.

Physical review. E, Statistical, nonlinear, and soft matter physics

Konorov SO, Akimov DA, Serebryannikov EE, Ivanov AA, Alfimov MV, Zheltikov AM.
PMID: 15600802
Phys Rev E Stat Nonlin Soft Matter Phys. 2004 Nov;70(5):057601. doi: 10.1103/PhysRevE.70.057601. Epub 2004 Nov 03.

Photonic-crystal fibers provide a high efficiency of frequency upconversion of regeneratively amplified femtosecond pulses of a Cr: forsterite laser, permitting the generation of subpicosecond anti-Stokes pulses with a smooth temporal envelope and a linear positive chirp, ideally suited for...

Phase-matched four-wave mixing of sub-100-TW/ cm2 femtosecond laser pulses in isolated air-guided modes of a hollow photonic-crystal fiber.

Physical review. E, Statistical, nonlinear, and soft matter physics

Konorov SO, Serebryannikov EE, Akimov DA, Ivanov AA, Alfimov MV, Zheltikov AM.
PMID: 15697544
Phys Rev E Stat Nonlin Soft Matter Phys. 2004 Dec;70(6):066625. doi: 10.1103/PhysRevE.70.066625. Epub 2004 Dec 28.

Hollow-core photonic-crystal fibers are shown to allow propagation and nonlinear-optical frequency conversion of high-intensity ultrashort laser pulses in the regime of isolated guided modes confined in the hollow gas-filled fiber core. With a specially designed dispersion of such modes,...

Wavelength-tunable ultrashort-pulse output of a photonic-crystal fiber designed to resolve ultrafast molecular dynamics.

Optics letters

Ivanov AA, Alfimov MV, Zheltikov AM.
PMID: 17072413
Opt Lett. 2006 Nov 15;31(22):3330-2. doi: 10.1364/ol.31.003330.

Wavelength-tunable 100 fs pulses generated through the soliton self-frequency shift in a photonic-crystal fiber are employed to visualize femtosecond coherence and population relaxation dynamics in molecular aggregates by means of time-resolved sum-frequency generation. This technique reveals an ultrafast dephasing...

Development of selective agonists and antagonists of P2Y receptors.

Purinergic signalling

Jacobson KA, Ivanov AA, de Castro S, Harden TK, Ko H.
PMID: 18600475
Purinergic Signal. 2009 Mar;5(1):75-89. doi: 10.1007/s11302-008-9106-2. Epub 2008 Jul 04.

Although elucidation of the medicinal chemistry of agonists and antagonists of the P2Y receptors has lagged behind that of many other members of group A G protein-coupled receptors, detailed qualitative and quantitative structure-activity relationships (SARs) were recently constructed for...

Spectral compression of frequency-shifting solitons in a photonic-crystal fiber.

Optics letters

Fedotov AB, Voronin AA, Fedotov IV, Ivanov AA, Zheltikov AM.
PMID: 19252585
Opt Lett. 2009 Mar 01;34(5):662-4. doi: 10.1364/ol.34.000662.

A highly nonlinear photonic-crystal fiber is used to demonstrate spectral compression of femtosecond light pulses combined with a tunable soliton frequency shift. A spectral compression ratio of 6.5 is achieved for solitons produced by unamplified 50 fs 1270 nm...

Contribution of dipolar interactions to third-order nonlinear dielectric susceptibility of nanocomposites.

Optics letters

Panov AV.
PMID: 20517431
Opt Lett. 2010 Jun 01;35(11):1831-3. doi: 10.1364/OL.35.001831.

We consider an ensemble of identical semiconductor nanoparticles randomly embedded into dielectric matrix. The nanoparticles are polarized by the laser irradiation having linear polarization. The contribution of dipole-dipole interactions to third-order dielectric susceptibility is calculated by using mean random...

γ-Brass polyhedral core in intermetallics: the nanocluster model.

Inorganic chemistry

Pankova AA, Blatov VA, Ilyushin GD, Proserpio DM.
PMID: 24083847
Inorg Chem. 2013 Nov 18;52(22):13094-107. doi: 10.1021/ic4019713. Epub 2013 Oct 01.

Using the TOPOS program package, 26-atom nanoclusters of the γ-brass (Cu5Zn8) type (0@4@22 or 0@8@18) were found in 5918 crystal structures of cubic intermetallics. The nanocluster models were built for all the intermetallics using a recently developed algorithm implemented...

Showing 1 to 12 of 139 entries